Wavelength-Tunable DWDM-SFP Transceiver with a Signal Monitoring Interface and Its Application to Coexistence-Type Colorless WDM-PON

An advanced DWDM-SFP transceiver is developed for the L-band featuring lambda-tunability, received signal monitoring, and a large power budget. A colorless WDM-PON enabling coexistence with existing PONs is demonstrated using the developed DWDM-SFP transceiver.